package com.kuang.springboot2board.config;

import org.springframework.web.servlet.HandlerAdapter;
import org.springframework.web.servlet.HandlerInterceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @author Gerald
 * @date 2022/6/14-14:13
 */

//拦截器
public class LoginHandlerInterceptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        Object loginUser=request.getSession().getAttribute("loginUser");

        if(loginUser==null){
            request.setAttribute("msg","没有登录，请先登录");
            request.getRequestDispatcher("/index.html").forward(request,response);

            return false;
        }
        else {
            return true;
        }
    }


}
